EP0553489A1 - Conduite pour automobiles en matière plastique en mono- ou multi-couches fabriquée par coextrusion - Google Patents
Conduite pour automobiles en matière plastique en mono- ou multi-couches fabriquée par coextrusion Download PDFInfo
- Publication number
- EP0553489A1 EP0553489A1 EP92122018A EP92122018A EP0553489A1 EP 0553489 A1 EP0553489 A1 EP 0553489A1 EP 92122018 A EP92122018 A EP 92122018A EP 92122018 A EP92122018 A EP 92122018A EP 0553489 A1 EP0553489 A1 EP 0553489A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- plastic
- layer
- din
- motor vehicle
- pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/12—Rigid pipes of plastics with or without reinforcement
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L11/00—Hoses, i.e. flexible pipes
- F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
- F16L11/12—Hoses, i.e. flexible pipes made of rubber or flexible plastics with arrangements for particular purposes, e.g. specially profiled, with protecting layer, heated, electrically conducting
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/12—Rigid pipes of plastics with or without reinforcement
- F16L9/133—Rigid pipes of plastics with or without reinforcement the walls consisting of two layers
Definitions
- the invention relates to a motor vehicle pipeline made of a single-layer or a multi-layer extruded plastic pipe of a given pipe wall thickness with a given hardness, strength, elongation at break and notched impact strength, which pipe is set up for a given desired function in the entire application temperature range down to minus 40 ° C and consists of a pipe wall material customary in motor vehicles.
- the term pipe also includes a less flexible hose.
- the target function is, for example, that of a fuel line, a brake line, a vacuum line, a cooling water line, a control line or the like.
- Hardness, strength, elongation at break and impact strength are set up by selecting the tube wall plastic for the single-layer or multi-layer tube wall so that the target functions are fulfilled . Hardness, strength, elongation at break and notched impact strength are also referred to below as mechanical quality parameters.
- Typical automotive piping or plastic pipes for automotive piping are e.g. B. described in DE 35 10 395, DE 37 15 251, DE 38 21 723 and DE 40 01 125.
- the plastic pipes of such motor vehicle pipelines also regularly undergo calibration in special, mostly cooled calibration tools, e.g. B. by a so-called. Vacuum calibration.
- the invention is based on the object of specifying a motor vehicle pipeline which has the structure described at the outset and which fulfills the desired functions described and which is free from disruptive calibration orientations and can be produced simply without melting a surface layer.
- the object of the invention is a motor vehicle pipeline made of a single-layer or a multi-layer extruded plastic pipe of a given pipe wall thickness with a given hardness, strength, elongation at break and impact strength, which pipe is set up and out for a given setpoint function in the entire application temperature range down to minus 40 ° C
- a conventional pipe wall plastic with a plastic layer that is insignificant for the intended function and which is cohesively applied to the outer surface of the plastic pipe by means of coextrusion in the manufacture of the plastic pipe, which layer has a factor of at most 0.8 less than the pipe wall plastic over the entire application temperature range Has hardness and is therefore set soft, and wherein the plastic tube in its outer wall by the thickness of the relax plastic layer, which by a factor of at least 0.5 is less than the tube wall thickness of the single-layer or multi-layer tube wall, is kept free in the entire application temperature range from the calibration orientations, which interfere with the values of strength, elongation at break and notched impact strength.
- the invention relates in principle to motor vehicle pipelines, the plastic pipes of which are produced in a known manner.
- the specified and prescribed mechanical quality parameters can be set up in a known manner and, to this extent, known technologies can be used.
- the manufacturing-related calibration orientations do not have to be accepted and subsequently eliminated because they do not even occur. This is due to the fact that the thin relaxation layer made of soft plastic and applied in the outer layer of the actual plastic tube has prevented the formation of calibration orientations. It remains to be seen whether this relaxation layer itself has a more or less pronounced calibration orientation. As a result of the softness of this layer, the calibration orientation and thus correlating phenomena in the relaxation layer cannot influence the mechanical quality parameters of the actual plastic pipe.
- the actual plastic tube is laminated to protect it by the relax layer.
- the known and proven tube wall plastics can be used, preferably a tube wall plastic as specified in claim 2.
- the plastic tube can have a wall thickness in the range specified in claim 3.
- the motor vehicle pipeline shown in the figure consists of a single-layer in the left part of the figure, in the right part of the figure multi-layer plastic pipe of a given pipe wall thickness with a given hardness, strength, elongation at break and notched impact strength.
- the pipeline is set up for one of the nominal functions specified at the outset, namely in the entire application temperature range down to minus 40 ° C. It consists of a tube wall plastic customary in motor vehicles. In this regard, reference is also made to the references cited at the beginning.
- a relax plastic layer 2 is applied to the surface of the actual plastic tube 1 by coextrusion in the manufacture of the plastic tube 1. This means that the connection takes place without delamination, as it were with molecular fusion.
- the relax plastic layer 2 is particularly adjusted. Compared to the tube wall plastic, it has a lower hardness over the entire application temperature range and is therefore set to be relatively soft. In this regard, reference is made to claim 1. But the thickness of the relax plastic layer 2 is also particularly adjusted. It is less than the tube wall thickness of the single-layer or multi-layer tube wall of the plastic tube 1 corresponds. In this way it can be achieved that the plastic tube 1 is kept free in the entire application temperature range from the calibration orientations of the molecules which interfere with the values of the strength, the elongation at break and notched impact strength.
- the relax plastic layer must not be too thin, but should not be too thick either, which is referred to claim 1. The appropriate thickness can easily be determined by tests in the laboratory.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Laminated Bodies (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4202397 | 1992-01-29 | ||
DE4202397A DE4202397C2 (de) | 1992-01-29 | 1992-01-29 | Kraftfahrzeug-Rohrleitung aus einem einschichtigen oder einem mehrschichtigen extrudierten Kunststoffrohr |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0553489A1 true EP0553489A1 (fr) | 1993-08-04 |
EP0553489B1 EP0553489B1 (fr) | 1997-09-03 |
Family
ID=6450473
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP92122018A Expired - Lifetime EP0553489B1 (fr) | 1992-01-29 | 1992-12-24 | Conduite pour automobiles en matière plastique en mono- ou multi-couches fabriquée par coextrusion |
Country Status (4)
Country | Link |
---|---|
US (1) | US5390705A (fr) |
EP (1) | EP0553489B1 (fr) |
DE (1) | DE4202397C2 (fr) |
ES (1) | ES2106816T3 (fr) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB9408767D0 (en) * | 1994-05-04 | 1994-06-22 | Hepworth Building Prod | Piping |
US5468129A (en) * | 1994-08-05 | 1995-11-21 | Cole Parmer Instrument Company | Peristaltic pump |
FR2726345B1 (fr) * | 1994-11-02 | 1996-12-27 | Atochem Elf Sa | Tubes en polyamide et en polyethylene pour la distribution du gaz domestique |
WO1997033117A1 (fr) * | 1996-03-04 | 1997-09-12 | Borealis A/S | Conduite a plusieurs couches |
SE505937C2 (sv) * | 1996-03-04 | 1997-10-27 | Borealis As | Flerskiktat rör |
US6000438A (en) * | 1998-02-13 | 1999-12-14 | Mcdermott Technology, Inc. | Phase change insulation for subsea flowlines |
DE19831898B4 (de) | 1998-07-16 | 2004-01-22 | Rasmussen Gmbh | Fluidleitung für Kraftstoffe und Kraftstoffdämpfe |
US6230749B1 (en) * | 1999-11-29 | 2001-05-15 | Norma Products (Us) Inc. | Multilayer tube |
US6670004B1 (en) * | 2000-08-02 | 2003-12-30 | Saint-Gobain Performance Plastics Corporation | Laminated nylon air brake tubing |
ATE350573T1 (de) | 2000-08-02 | 2007-01-15 | Ti Automotive Fuldabrueck Gmbh | Kraftfahrzeugrohrleitung |
ES2220839T3 (es) * | 2001-04-10 | 2004-12-16 | Rasmussen Gmbh | Tubo multicapa para fluidos hidrocarbonados. |
JP4234333B2 (ja) * | 2001-08-07 | 2009-03-04 | 株式会社パイオラックス | 自動車配管用樹脂チューブ及びその製造法 |
US6591871B2 (en) * | 2001-09-13 | 2003-07-15 | Dayco Products, Llc | Low permeation polybutylene terephthalate and polybutylene naphthalate fuel and vapor tubes |
JP2003287165A (ja) * | 2002-01-24 | 2003-10-10 | Tokai Rubber Ind Ltd | 燃料用ホース |
US20030145896A1 (en) * | 2002-02-06 | 2003-08-07 | Saint-Gobain Performance Plastics Corporation | Coiled laminated air brake tubing |
US20040058111A1 (en) * | 2002-09-23 | 2004-03-25 | Saint-Gobain Performance Plastics Corp. | Compounded nylon 6, nylon 12 material for air brake systems |
US20040096615A1 (en) * | 2002-11-18 | 2004-05-20 | Saint-Gobain Performance Plastics Corp. | Hose comprising modified nylon 6,12 material |
ES2453495T3 (es) * | 2005-04-29 | 2014-04-08 | Arkema France | Tubo multicapa a base de poliamida para la transferencia de fluidos |
GB2437332B (en) * | 2006-04-21 | 2008-03-12 | Miniflex Ltd | Tube |
ES2363681B1 (es) * | 2011-05-05 | 2012-04-20 | Industrie Ilpea España, S.A. | Tubo |
JP7179460B2 (ja) * | 2015-09-28 | 2022-11-29 | 株式会社ブリヂストン | ホース用樹脂材料、ホース管及びホース |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2454039A1 (fr) * | 1979-04-10 | 1980-11-07 | Automotive Prod Co Ltd | Tube souple pour fluide |
EP0445706A2 (fr) * | 1990-03-05 | 1991-09-11 | Ems-Inventa Ag | Conduites multi-couches pour carburant |
Family Cites Families (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2053140A (en) * | 1933-08-22 | 1936-09-01 | Ball Brothers Co | Jar sealing ring |
US2932323A (en) * | 1957-02-25 | 1960-04-12 | Robert S Aries | Polyethylene articles |
US2971538A (en) * | 1958-01-31 | 1961-02-14 | Moore & Co Samuel | Extruded tubing |
US3561493A (en) * | 1965-04-21 | 1971-02-09 | Paul Maillard | Composite tubes and method of manufacturing same |
US3618614A (en) * | 1969-05-06 | 1971-11-09 | Scient Tube Products Inc | Nontoxic radiopaque multiwall medical-surgical tubings |
US3762986A (en) * | 1971-02-26 | 1973-10-02 | Allied Chem | Polyamide composite film |
JPS5419027B2 (fr) * | 1974-09-26 | 1979-07-12 | ||
US4303457A (en) * | 1975-10-06 | 1981-12-01 | Eaton Corporation | Method of making a semi-conductive paint hose |
US4196464A (en) * | 1978-02-23 | 1980-04-01 | Eaton Corporation | Semi-conductive layer-containing reinforced pressure hose and method of making same |
JPS54159723A (en) * | 1978-06-08 | 1979-12-17 | Mitsubishi Plastics Ind Ltd | Polyethylene pipe having different densities in thickness direction |
DE3071454D1 (de) * | 1979-11-28 | 1986-04-03 | Wirsbo Bruks Ab | Gaseous diffusion resistant article |
US4474217A (en) * | 1980-03-31 | 1984-10-02 | The Goodyear Tire & Rubber Company | Hose structure |
US4424834A (en) * | 1982-09-22 | 1984-01-10 | Kyoraku Co., Ltd. | Elastic shaped article |
DE3510395A1 (de) * | 1985-03-22 | 1986-09-25 | Technoform Caprano + Brunnhofer KG, 3501 Fuldabrück | Kraftstoffuehrende, mit vorgegebener laenge fest installierbare leitung fuer ein kraftfahrzeug |
FR2596692B1 (fr) * | 1986-04-04 | 1988-09-09 | Atochem | Tubes en matiere plastique semi-cristalline extrudes presentant une resistance au choc a froid et a la traction amelioree par un traitement thermique et leur procede de fabrication |
US4791965A (en) * | 1987-02-13 | 1988-12-20 | James Hardie Irrigation, Inc. | Co-extruded tube |
US5052444A (en) * | 1987-04-30 | 1991-10-01 | The Fluorocarbon Company | Reinforced fluid hose having on-bonded tape |
DE3715251A1 (de) * | 1987-05-08 | 1988-12-01 | Caprano & Brunnhofer | Kraftfahrzeug-rohrleitung fuer die fuehrung eines alkoholischen mediums |
DE3821723C1 (en) * | 1988-06-28 | 1989-09-21 | Technoform Caprano + Brunnhofer Kg, 3501 Fuldabrueck, De | Multilayer motor vehicle pipe produced by coextrusion |
DE3827092C1 (en) * | 1988-08-10 | 1989-09-07 | Technoform Caprano + Brunnhofer Kg, 3501 Fuldabrueck, De | Use of a multi-layered plastic pipe, produced by coextrusion, as a heat-resistant pipe for fuel-carrying lines in motor vehicles |
DE4001125C1 (fr) * | 1989-11-20 | 1990-12-13 | Technoform Caprano + Brunnhofer Kg, 3501 Fuldabrueck, De | |
US5154357A (en) * | 1991-03-22 | 1992-10-13 | Ransburg Corporation | Peristaltic voltage blocks |
DE4202399C1 (fr) * | 1992-01-29 | 1993-02-04 | Technoform Caprano + Brunnhofer Kg, 3501 Fuldabrueck, De |
-
1992
- 1992-01-29 DE DE4202397A patent/DE4202397C2/de not_active Expired - Lifetime
- 1992-12-24 ES ES92122018T patent/ES2106816T3/es not_active Expired - Lifetime
- 1992-12-24 EP EP92122018A patent/EP0553489B1/fr not_active Expired - Lifetime
-
1993
- 1993-01-27 US US08/009,455 patent/US5390705A/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2454039A1 (fr) * | 1979-04-10 | 1980-11-07 | Automotive Prod Co Ltd | Tube souple pour fluide |
EP0445706A2 (fr) * | 1990-03-05 | 1991-09-11 | Ems-Inventa Ag | Conduites multi-couches pour carburant |
Also Published As
Publication number | Publication date |
---|---|
EP0553489B1 (fr) | 1997-09-03 |
DE4202397C2 (de) | 1999-01-14 |
DE4202397C1 (fr) | 1993-02-11 |
ES2106816T3 (es) | 1997-11-16 |
US5390705A (en) | 1995-02-21 |
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